IFSTA 3 operating emergency vehicles Flashcards
What percent of firefighter injuries and deaths are caused by vehicle collisions responding to from emergency calls
page 59 2nd edition
20-25%
What is the first step in starting a vehicle
3rd page 125
Disconnect all ground Shores
How quickly should the oil pressure gauge indicate a reasonable amount of pressure
3rd page 125
5-10 seconds
When driving manual transmission keep the Apparatus in low gear until ——— is reached before shifting into a higher gear
page 69 2nd edition
Proper speed
When cruising in an apparatus do not try to reach rated speed in the
page 69 2nd edition
low gears
When driving in Apparatus stay in the highest gear that allows the Apparatus to ——— and still have some power and reserve for acceleration
page 70 2nd edition
Keep up with traffic
What should be avoided in order to reduce lugging (carbon build up in engine due to fuel being injected in engine at rate higher than can be burned off)
page 71 2nd edition
page 99 3rd edition
Over throttling
To avoid over speeding as a result of improper downshifting or Hill descent choose a gear that allows the engine to operate at —— rpm lower than maximum recommended rpm
page 71 2nd edition
200-300 rpm
Which of the following is not a consideration when stopping the Apparatus
Length of apparatus
Which of the following provides most of the necessary slowing action when stopping an apparatus
page 71 2nd edition
engine brakes
When an engine must be left to idle for an extended period of time at what rpm should it be set
page 72 2nd edition
900-1100 rpm
If diesel engines are to be idling they should be set at what speed
page 72 2nd edition
High idle
How long should you allow an engine to idle to lower engine temperature before shut down
page 95 2nd edition/page 95 3rd edition
3-5 min
define visual lead time
3rd page 105
Time needed to stop the Apparatus order form and evasive maneuver at the current rate of speed
Whenever a vehicle undergoes a change in speed or direction, weight transfer takes place relative to what
page 98 3rd edition
rate & degree of change
Which braking system has a dry Road slippery road switch
page 82 2nd editon
Front brake limiting valve type
Which braking system has a snow and mud switch
page 83 2nd edition
Antilock braking system with automatic transfer control
Which direction on a slope of a hill become slippery first the eastern western southern or northern
page 84 2nd edition
Northern
It takes —— times more distance for a vehicle to come to a complete stop on snow when ice than it does on dry concrete
page 99 3rd edition
3-15
When more than one emergency vehicles responding along the same route travel at least —— to ———feet apart
page 85/86 2nd edition
page 101 3rd edition
300-500
what type of Traffic control device use a strobe lights mounted on Apparatus to activate sensors in the traffic lights
3rd page 102
strobe Light activated preemption devices
what is a drivers most important responsibility while operating the apparatus
page 84
To operate apparatus safely during routine driving and emergency response calls
Which type of accident accounts for the significant percentage of all damage repair costs
Backing
True or false
ABS braking systems and/or radial tires reduce brake fading
3rd page 87
false
True or false an apparatus with a properly baffled water tank that is partially filled may be more dangerous than a full tank or empty tank
page 88
True
At what speed may an apparatus be driven while loading 4 inch diameter hose
page 91
No greater than 5 mph
what two things must a driver know when preparing to start the Apparatus
3rd page 94
destination
route
define diesel particulate filter
page 94 3rd edition
filter which collects particles from exhaust and burns them off providing cleaner emissions
failing to keep the diesel exhaust fluid tank full may reduce what?
page 95
torque
How often should the diesel exhaust fluid tank be filled
page 95
every time an apparatus is fueled
define angle of approach
page 97
Angle formed by level ground and a line from the point where the front tires touch the ground to the lowest projection at the front of the apparatus
define angle of departure
page 97
Angle formed by level ground and a line from the point where the rear tires touch the ground to the lowest projection at the rear of the vehicle
define brake over angle
page 97
Angle formed by level ground and a line from the point where the tires touch the ground to the bottom of the frame at the wheel base point
NFPA 1002 is what
Standard for fire apparatus driver operator professional qualifications third edition page 79
NFPA 1901 what is it
Standard for automotive fire apparatus
3rd edition page 90
To what percent must personnel ensure axle load is balanced from side to side & front to back of apparatus?
page 98 3rd edition
7%
NFPA 1901 requires a placard in every apparatus to list what?
page 99 3rd edition
Height in feet and weight in tons
At what speed can an emergency vehicle outrun the effective range of an audible warning device
page 101 3rd edition
50mph
define braking distance
page 105 3rd edition
Distance vehicle travels from time brakes are applied until it comes to a complete stop
define total stopping distance
page 105 3rd edition
Sum of the drivers reaction distance in vehicle braking distance
define reaction distance
page 105 3rd edition
Distance vehicle travels while driver transfer is a foot from accelerator to brake pedal after perceiving need to stop
what are the four types of auxiliary braking systems
page 109 3rd edition
Exhaust brake
engine compression break transmission output retarder electromagnetic retarder
at what speed should a Apparatus deploy hose during a layout
page 120 3rd edition
5mph
Restraints used to secure gear on Apparatus must be capable of straining equipment against a force of ——- times the equipments own weight?
page 120 3rd edition
10 times
hydraulic fluid pressurized to what psi can penetrate your skin
page 122 3rd edition
100psi
Define negligence
3rd page 84
Breach of duty in which the person or organization fails to perform at the standard required by law or that would be expected to be reasonable person on earth similar circumstances
define gross negligence
3rd page 84
The willful and wanton disregard
Vehicles with a gross vehicle weight rating of ——— or greater are required to be equipped with auxiliary braking systems
3rd page 109
36,000 lbs
what 2 things should be done to regain control during a skid when vehicle is NOT equipped with ABS
3rd page 108
ease off the brake
straiten front wheels
which 2 auxiliary braking systems provide the highest level of braking torque & are unaffected by transmission gear shift changes
3rd page 109
transmission out put retarders
electromagnetic retarders
define exhaust brake
3rd page 110
least capable
valve restricts flow of exhaust creating back pressure
define engine compression break
3rd page 110
Device that uses engine and transmission to impede the forward motion of the vehicle by Compression of the engine
define electro magnetic retarder
3rd page 110
Electro mounted in driveline or supplied as part of the rear axle when activated electromagnetic field is created in supplies electrical power to coils in the retarder inhibiting rotation of the rotor braking torque at the rear wheels
define transmission retarders
3rd page 110
viscous property of automatic transmission fluid is used to retard the driveline by introducing it to a housing and energy absorbed into the fluid through opposing action of spinner veins
define automatic traction control
3rd page 111
Automatically reduces engine torque and applies brakes to wheels that have lost traction and begin to spin transferring torque to the wheels that still have traction improving overall traction on slippery roads
may be combined with antilock braking systems
also has mud and snow switch
define driver controlled differential lock
3rd page 111
Switch enabling both wheels to turn at the same speed by locking differential maximizing traction
define interaxle differential lock
3rd page 111
action between rear tandem axles are creating one solid driveline between the rear axles resulting in more torque and better traction
How far back from a vehicle should the spot to be standing
8-10’
